In MSPACE, Extents/All/Window/Object fitted the drawing window's aspect and
paper-view height, In/Out/nX zoomed about the screen centre, and nXP was read
as nX. Now ZOOM works on the active (unlocked) viewport's model view: fits use
the viewport's aspect, zooms keep its centre, and nXP sets the viewport scale
to n paper units per model unit. Locked viewports and the Model tab are
unchanged.
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>